State Water Heaters SandBlaster SBD71 120 How to use

MODELS COVERED
SBD71 120 Through SBD85 500
The Expert’s Choice®
COMMERCIAL
The Expert’s Choice®
COMMERCIAL
Self Cleaning Commercial Gas Water Heaters
with Flue Damper and Electronic Ignition
Part Number STC-072
Printed in the U.S.A. - 0106
State Water Heaters
500 Tennessee Waltz Parkway
Ashland City, TN 37015
800-365-8170
www.statewaterheaters.com
SERVICE HANDBOOK
SandBlaster®
Also includes Parts List
Prepared by the State Water Heaters Training Department.
For additional technical information call 800-365-0577.
©Copyright 2006 State Industries, Inc. Downloaded from www.Manualslib.com manuals search engine

SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
1
SBD
HANDBOOK
TABLE OF CONTENTS
PAGE PAGE
Troubleshooting (continued)
Introduction 1-2 Troubleshooting the Efflkal 28-30
WireHarnessTest 31
Installation 3 IID Module 32
Clearances 4 Pilot Spark 33
Air Requirements 5-8 Pilot Valve 34-35
Contaminated Air 9 Main Burner Test 36
Flammable 9 Flame Rectification 37
Gas Pressure 10 IID Module 38
Gas Valve 11 Main Gas Valve 39-40
Venting 12-15
Sequence of Operation
Mechanical 16 Service Charts and General
Electrical 17-18 Questions and Answers 41-42
Troubleshooting Parts List 43-50
Transformer 19
High Limit 20-21 Component Part Information 51
Damper (on Standby) 22
PC Board 22-23 Service Check List 52-53
Thermostat 24
Effikal Damper 25 Comments 54
Effikal Harness Test 26
Normal Operation 26-27
SBD SERVICE HANDBOOK INTRODUCTION
This service handbook is designed to aid in servicing and troubleshooting State SBD water heaters in the
field. No duplication or reproduction of this book may be made without the express written authorization of
the State Water Heater Company.
The following text and illustrations will provide you with a step by step procedure to verify proper installation,
operation, and troubleshooting procedures. Additional quick reference data is included to assist you in
servicing this product.
The information contained in this handbook is designed to answer common questions encountered in the
operation of the SBD product line and is not meant to be all inclusive. If you are experiencing a problem not
covered in this handbook, please contact the Technical Information Department at 1-800-365-0577 or your
Local State Water Heater Sales Representative for further assistance. This handbook is intended for use by
licensed plumbing professionals and reference should be made to the installation manual accompanying the
product. This handbook contains supplemental information to the SBD installation and operation manual.

SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
2
Qualifications: Installation or service of this water heater requires ability equivalent to
that of a licensed tradesman in the field involved. Plumbing, air supply, venting, gas
supply and electrical testing skills are required.
Tools Required:
•Phillips head screwdriver
•standard screwdrivers
•a 3/8 and 7/16 inch open end wrench
•set of marked drill bits
•an electrical multimeter tester capable of measuring continuity
•gas pressure gauge or manometer
•water pressure gauge
•thermometer
•1/2 inch socket with extension for removal of the clean out cover,
•1 1/16 inch socket with extension for anode removal.
CUSTOM COMMERCIAL STORAGE TANK MODEL NUMBER BREAKDOWN
Model Breakdown
SBD 85 500 P E A CGA D
*Up to 8,000 Feet
S D 85 500 PEA DB
Sandblaster/Damper
85
Gallon
500,000
BTUH Propane
3 Year
Warranty ASME
Constructed High
Altitude*
CGA
None=Standard
T=Tall
S=Short
Canadian
Product
(if applicable)

SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
3
INSTALLATION
This portion of the handbook will review some often overlooked installation considerations,
taking note of necessary installation requirements for the SBD 71120 through SBD 85500
model heaters. The installation manual covers most of these items in detail.
Clearance to Combustibles Table
MODEL A B C
120 - 200 1” (2.54CM) 1” (2.54CM) 1” (2.54CM)
250 - 305 2” (5.08CM) 2” (5.08CM) 2” (5.08CM)
365 - 400 3” (7.75CM) 3” (7.75CM) 3” (7.75CM)
500 5” (12.7CM) 5” (12.7CM) 5” (12.7CM)
A 24 inch clearance for all serviceable parts is recommended. Clearances may vary
between SBD models – See instruction manual or the label on the heater, for clearances
applicable to your specific model.
*20” (50.8CM) for 500 models.
CLEARANCES FROM COMBUSTIBLES

SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
4
EXTERIOR CLEARANCE
This illustrates the exterior roof clearances for SBD units with natural draft venting. The
vent shall extend at least 3 feet above the highest point where it passes through a roof of
a building, and at least 2 feet higher than any portion of a building within a horizontal
distance of 10 feet (for vents of 12" in diameter or less). (NFPA 54 ANSI Z 223.1 SEC
7.5.2a). (Sec 7.6.2a may allow reduction to 8 feet with a “ Listed vent cap”).
"Copyright by the American Gas Association. Used by permission of the copyright holder".

SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
5
AIR FOR COMBUSTION
10 CUBIC FEET OF AIR PER 1,000 BTU
Stoichiometric or theoretical complete combustion requires 10 cubic feet of air per 1000
BTUH input of the gas input. The National Fuel Gas Code also recommends an
additional 2.5 cu.ft. of "excess" air. This 12.5 cu.ft minimum supply air per 1000 BTUH
input applies to natural and propane gas models.
The National Fuel Gas Code also specifies minimum make-up air opening sizes for
various building installations. (Ref: NFPA 54, ANSI Z223.1, sec 5.3)
2.5 CU.
FT.
EXCESS
AIR
10 CU.
FT.
COMB.
AIR
+
1
1
1,
,
,0
0
00
0
00
0
0
B
B
BT
T
TU
U
U (Minimum)

SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
6
MAKE-UP AIR
DIRECT COMMUNICATION
A fresh supply of make-up air for combustion can be supplied to the heater through make-
up air ducts which directly communicate with the out of doors. Two openings are required
- one within 12 inches of the top of the enclosure and one within twelve inches of the
bottom of the enclosure. Each opening shall have a free area of not less than 1 square
inch per 4000 BTUH of the total input of all appliances within the enclosure.
The lower opening is primarily providing combustion air. The upper opening is providing
vent dilution air and acts as a relief opening for flue gases should the vent become
obstructed or a downdraft condition occur. Additionally, when the heater is installed in a
confined space and communicating with the outdoor air, one permanent opening,
commencing within 12 in. (30 cm) of the top of the enclosure, shall be permitted where
the equipment has clearances of at least 1 in. (2.5 cm) from the sides and back and 6 in.
(16 cm) from the front of the appliance. The opening shall directly communicate with the
outdoors and shall communicate through a vertical or horizontal duct to the outdoors or
spaces (crawl or attic) that freely communicate with the outdoors, and shall have a
minimum free area of:
a. 1 sq. in. per 3000 BTU per hr (7 cm2per kW) of the total input of all equipment
located in the enclosure, and
b. Not less than the sum of the areas of all vent connectors in the confined space.
1 Square
Inch Per
4,000
BTUH

SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
7
MAKE-UP AIR
VERTICAL DUCTS
Often it is more practical to install vertical make-up air ducts to the out doors. Again, two
openings are required - one within 12 inches of the top of the enclosure and one within
twelve inches of the bottom of the enclosure. Each opening shall have a free area of not
less than 1 square inch per 4000 BTUH of the total input of all appliances within the
enclosure.
MAKE-UP AIR
HORIZONTAL DUCTS
When the heater is installed in an interior room with no roof access for vertical ducts,
horizontal make-up air ducts should be installed. When using horizontal ducts, two
openings are required - one within 12 inches of the top of the enclosure and one within
twelve inches of the bottom of the enclosure. Each opening shall have a free area of not
less than 1 square inch per 2000 BTUH of the total input of all appliances within the
enclosure.
1 Square
Inch Per
4,000
BTUH
1 Square
Inch Per
2,000 BTUH

SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
8
INSUFFICIENT MAKE-UP AIR
BACKDRAFT
Insufficient make-up air is a major cause of combustion problems. One common example
is in a restaurant installation where exhaust vent equipment was not considered in sizing
make-up air requirements. This may result in air being backdrafted by the restaurant
exhaust equipment through the heater causing flue gas spillage, flame roll out, improper
combustion, inconsistent pilot operation, and/or erratic heater shut down.

SBD TANK TYPE HEATERS
SERVICE HANDBOOK
Technical Training Department
Ashland City, TN ©2003
9
CONTAMINATED AIR
Along with adequate make-up air, the quality of the air is important. Contaminants in
combustion air can lead to premature heater failure. Vapors from bleaches, soaps,
waxes, salts, etc. are drawn into the combustion chamber with the make-up air and, once
fired, mix with water vapor in the gases to form extremely corrosive hydrochloric or
hydrofluoric acid and other corrosive byproducts.
AIR FOR COMBUSTION
Flammable Items
Flammable items, pressurized containers or any other potentially hazardous articles must
never be placed on or adjacent to the heater. Open containers of flammable material
should not be stored or used in the same room with the heater.